1. Dolichomitus annulicornis (Cameron, 1886)

Ephialtes annulicornis Cameron 1886: 262 [♀ (all in BMNH), Guatemala (San Isidro at 1600 ft. and San Jéronimo, coll. Champion), Panama (Volcán de Chiriquí at 2000 to 6000 ft., coll. Champion)].

References. Schulz 1907: 323 [ Labena]. Morley 1914: 19 [ Ephialtes; remarks; Mexico (Oaxaca, Tabasco)]. Townes & Townes 1966: 13 [catalogue; syn. of D. zonarus zonatus; Guatemala, Panama]. Gauld 1991: 216 [ex synonym; Dolichomitus; lectotype ♀ (BMNH) designated, Guatemala, San Jerónimo, coll. Champion; Mexico (Tabasco), Costa Rica, Panama, Colombia, Brazil (Bahia); biology]. Gauld et al. 1998: 25 [in key; Costa Rica]. Gauld et al. 2002: 36 [El Salvador]. RuízCancino et al. 2002: 645 [checklist; Mexico]. Hernández-Aguilar et al. 2005: 470 [Mexico (Tamaulipas)]. Quicke et al. 2009: 1413 [Costa Rica]. Ruíz-Cancino et al. 2010: 64 [checklist; Mexico (Tamaulipas)]. Araujo et al. 2020: 93 [in key], 95 [figs.].

Material examined. MEXICO. Tamaulipas: 1 ♀ (UAT) Llera [Municipio], El Encino, 27.iii.2001, coll. C.A. Covarrubias D. 4 ♂ (UAT) Gómez Farías, Altas Cimas, Malaise trap, 24.iv–22.v.1999, coll. S. Hernández A. 1 ♂ (UAT) Gómez Farías, Los Cedros, 300 m, Malaise trap, 13.iii.2003, coll. D. R. Kasparyan . 2 ♂ (UAT) Gómez Farías, Canindo, Malaise trap, 20–21.vii.1994, coll. J.B. Woolley. Ocampo, Ejido El Bejuco, 900 m, Malaise trap, coll. E. Ruíz-Cancino et al. (all in UAT): 12–25.vi.2016 (2 ♂), 30.vii–12.viii.2016 (1 ♂) . Jalisco: 1 ♀ (TAMU) 8 mi. S of Autlan, 8.vii.1984, coll. Carroll, Schaffner & Friedlander. Veracruz: 2 ♀ (UNAM) NE of San Andrés Tuxtla, Biological Station Los Tuxtlas, 13–20.xi, 15–19.xii.1988, coll. E. Mejorada. Same locality, 150–210 m, selva alta perennifolia, Malaise trap, coll. M. Madora: 1 ♂ (UNAM) 10.iii–14.iv.2013, 1 ♂ (ZISP) 16–31.iii.2014, 3 ♂ (UNAM) 31.iii–16.iv.2014, 1 ♂ (UNAM) 14–28.v.2014, 1 ♂ (ZISP) 28.v–16.vi.2014 . Oaxaca: 1 ♂ (TAMU) 15.1 mi. N of San Gabriel Mixtepec, 3850 ft. (= 1175 m), Highway 131, 11.vii.1987, coll. R. Wharton . Chiapas: 1 ♀ (ZISP) 40 km E of Comitán, National Park Lagos de Montebello, 16.132282, -91.729243, 9.viii.2021, coll. A.I. Khalaim. COSTA RICA. Cartago: 1 ♂ (INHS) Turrialba, 2.ix.1979, coll. M.E. Irwin.

Remarks. The species belongs to the zonatus species-group, defined by Gauld (1991) for three species occurring in Costa Rica, having a vespid mimicking males with specialized fore trochanters and coxae, and females with ovipositor sheath sparsely and shortly hirsute.

Distribution. Mexico (Tamaulipas, Jalisco, Veracruz, Oaxaca, Tabasco, Chiapas), Guatemala, El Salvador, Costa Rica, Panama, Colombia, Brazil (Bahia).

Biology. Males of this species are Batesian mimics of a common species of Agelaia Lepeletier ( Hymenoptera: Vespidae) (Gauld 1991).